By now most of you probably know that AMD's Fusion technology bakes a CPU and GPU into one single piece of silicon. And while we have already reviewed the E-350 APU by its lonesome, we've been patiently waiting for a system builder to integrate the chip into a retail-ready, ultra-portable notebook. Lenovo has become one of the first to do so, offering two configurations of the new ThinkPad X120e: a $399 build with the E-240 APU, and a $579 build with the E-350 APU, 4GB of RAM and a roomy 320GB (7200RPM) hard drive. Both use an 11.6" display and ship with Windows 7...